Bigger orbits take longer to go around, just like bigger swings take longer to swing back and forth.
Imagine you're on a playground swing. If your swing is short, you zoom back and forth quickly. But if your swing is really long, it takes more time to complete each full swing, up and down. That's because the path you follow is longer, and gravity pulls you slower when you’re farther away.
Like a car on a track
Gravity's gentle pull
The farther something is from what it’s orbiting (like Earth or the Sun), the weaker gravity pulls it. That means it moves slower and takes longer to complete its full journey around, just like you take longer to swing on a long rope than on a short one.
So, bigger orbits = longer journeys = more time to go all the way around! Bigger orbits take longer to go around, just like bigger swings take longer to swing back and forth.
Imagine you're on a playground swing. If your swing is short, you zoom back and forth quickly. But if your swing is really long, it takes more time to complete each full swing, up and down. That's because the path you follow is longer, and gravity pulls you slower when you’re farther away.
Like a car on a track
Think of an orbit like a racecar going around a track. If the track is small, the car zooms around it quickly. But if the track is huge, like a big loop around the playground, the car has to travel more distance, so it takes longer to finish each lap.
Examples
- Imagine running around a small park versus a huge stadium, the bigger one takes more time.
- The Moon takes about a month to orbit Earth, while a low-Earth satellite might do it in just 90 minutes.
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See also
- How Does Hewitt-Drew-it! PHYSICS 50.Circular/Elliptical Orbit Work?
- Why do objects in space follow elliptical orbits ?
- Why does the Earth float in space without falling down?
- Why doesn't the Moon fall down?
- What are orbital resonances?